Southern Vietnam is seeing a cold-air / easterly disturbance / ninth-lunar-month high-tide overlap this week. The Southern Regional Hydrometeorological Centre and media reports flag a heightened flood risk, especially on 28–29 October 2026. Days can still turn out mostly sunny, with temperatures around 31–34°C; rain is more likely in the afternoon and evening on 27–29 Oct. Areas called out include Ho Chi Minh City, Can Tho, Vinh Long and Dong Thap.
Reported water levels & tides
- Upstream Mekong gauges: Tan Chau ~2.56 m, Chau Doc ~2.58 m (as reported)
- Around HCMC: Phu An ~1.73 m (27 Oct), Nha Be ~1.75 m, Thu Dau Mot ~1.88 m
- Earlier coverage (~23 Oct) also pointed to Saigon River high tides peaking 26–28 Oct: Phu An / Nha Be ~1.70–1.75 m (above alarm level 3 = 1.6 m), Thu Dau Mot ~1.8–1.85 m; peak tides often ~05:00–07:00 and ~17:00–19:00
Practical tips for Hong Kong travellers this week
- Skip low-lying riverside streets at tide peaks — brief street flooding is more common in the early morning and late afternoon/evening windows above.
- Leave extra Grab / transfer time — flooded stretches slow traffic; pad airport and cross-district rides.
- Indoor plans still work — malls, cafés and museums are fine; lean indoor on 28–29 Oct if rain stacks with high tide.
- Flying into SGN — flights themselves may be fine, but city roads can lag; allow buffer from the airport to your hotel.
- Central coast still rainy — the national week outlook has the North mostly sunny; Central (Thanh Hoa–Hue / northern South Central) showers to heavy rain ~26–29 Oct, so beach days there look less ideal.
Related pages
See our Ho Chi Minh City guide and transport & visas page. Conditions change — check official forecasts before you go.
This post is an original summary, not a full reprint of forecast or press copy. Water levels are reported observations/forecasts — treat local authorities as the source of truth.